Crystal growth of mixed AlN–SiC bulk crystals

Autor:	Boris M. Epelbaum, Paul Heimann, Octavian Filip, Albrecht Winnacker, Matthias Bickermann
Rok vydání:	2010
Předmět:	Chemistry Analytical chemistry Mineralogy Crystal growth Cathodoluminescence Condensed Matter Physics C content Spectral line Inorganic Chemistry Crystal Materials Chemistry Sublimation (phase transition) Seed crystal Bulk crystal
Zdroj:	Journal of Crystal Growth. 312:2522-2526
ISSN:	0022-0248
Popis:	Bulk AlN–SiC mixed single crystals are prepared by sublimation growth employing pure AlN or mixed AlN–SiC sources and 6H-SiC seed crystals. As the growth temperature is increased from 1900 to 2050 °C, using seeds with different off-axis orientations, inclined up to 42° from the basal plane toward the (0 1 –1 0)-plane, or using different source materials, crystals with different Si/C contents are obtained. Dependent on the Si and/or C content, crystal coloration changes from yellowish to greenish to blackish. Modification in crystals’ coloration and corresponding changes in below band-gap optical absorption and cathodoluminescence spectra are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b83d467079504b4dabd6823578a74a7f https://doi.org/10.1016/j.jcrysgro.2010.04.006 Zobrazit plný text záznamu Full Text from ScienceDirect